Revenues - Schedule of revenue disaggregated by timing of recognition (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 162	$ 237
Product and services transferred at point in time [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	12
Products and services transferred over time [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 162	$ 225

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details